Method and apparatus for automatically disarming a security system

Abstract

A security system comprises a system control panel for arming and disarming the security system. A door sensing unit comprises a first radio frequency (RF) transceiver interconnected with the system control panel over a network. The first RF transceiver is mounted proximate to a door that defines at least a portion of a perimeter around an area to be monitored by the security system. The first RF transceiver has an RF detection field proximate to the door. A disarm device comprises a second RF transceiver that automatically transmits a disarm device packet. The first RF transceiver receives the disarm device packet when the second RF transceiver is within the RF detection field. The first RF transceiver sends a disarm message to the system control panel over the network to disarm the security system based on at least the disarm device packet.

What is claimed is: 
     
       1. A door security device configured to monitor a door, comprising:
 a motion detector configured to detect motion that is within a perimeter around an area to be monitored by a security system and proximate to the door; 
 a door sensor mounted proximate to the door, the door sensor configured to detect open and closed positions of the door; and 
 a controller in communication with the motion detector and the door sensor, the controller configured to:
 receive a signal from a system control panel of the security system, the signal indicative that at least a part of the security system is in an armed state; 
 receive a communication from the motion detector indicative of detecting motion within the perimeter; 
 receive a communication from the door sensor indicative of detecting the open position of the door; 
 in response to determining that the at least a part of the security system is in the armed state, and that the motion within the perimeter is detected at substantially the same time as the open position of the door is detected, performing at least one of:
 determining not to send to the system control panel a door open signal; or 
 sending a system control panel signal to the system control panel, the system control panel signal indicative to the system control panel to modify configuration such that an indication of door open in at least a part of the security system does not trigger an alarm. 
 
 
 
     
     
       2. The door security device of  claim 1 , wherein the controller is configured to determine not to send to the system control panel the door open signal by ignoring the communication from the door sensor indicative of detecting the open position of the door was received. 
     
     
       3. The door security device of  claim 1 , wherein the controller is configured to determine not to send to the system control panel the door open signal by disabling the door sensor. 
     
     
       4. The door security device of  claim 1 , wherein the door sensor comprises a wireless door contact sensor. 
     
     
       5. The door security device of  claim 1 , wherein the motion detector comprises a passive infrared detector. 
     
     
       6. The door security device of  claim 1 , further comprising a wireless transceiver in communication with the controller, the wireless transceiver configured to communicate with the system control panel. 
     
     
       7. The door security device of  claim 6 , wherein the wireless transceiver comprises an RF transceiver. 
     
     
       8. The door security device of  claim 1 , wherein the signal received from the system control panel is indicative of an armed stay mode, the signal indicative to the door security device to monitor entry into the perimeter and not to generate an alarm in response to an exit from the perimeter. 
     
     
       9. The door security of  claim 8 , further comprising a wireless transceiver configured to receive a communication from a portable device; and
 wherein the controller is further configured to determine, based on the communication from the portable device, whether to send a disarm message to the system control panel. 
 
     
     
       10. The door security of  claim 9 , wherein the communication from the portable device comprises a device packet; and
 wherein the controller is configured to determine whether to send the disarm message to the system control panel by:
 comparing an ID in the device packet with a list of approved IDs to determine whether the portable device is preauthorized; and 
 in response to determining that the portable device is preauthorized, sending the disarm message to the system control panel. 
 
 
     
     
       11. The door security of  claim 9 , wherein the communication comprises a device ID and a system ID; and
 wherein the controller is configured to determine whether to send the disarm message to the system control panel by:
 comparing the device ID with a list of approved IDs to determine whether the portable device is preauthorized; 
 comparing the system ID to determine whether the system ID is indicative of the security system; and 
 in response to determining that the portable device is preauthorized and that the system ID is indicative of the security system, sending the disarm message to the system control panel. 
 
 
     
     
       12. A method for monitoring a door using a door security device, the method comprising:
 receiving, by the door security device, a signal from a system control panel of a security system, the signal indicative that at least a part of the security system is in an armed state; 
 receiving a communication from a motion detector of the door security device, the motion detector configured to detect motion that is within a perimeter around an area to be monitored by the security system and proximate to the door, the communication indicative of detecting motion within the perimeter receiving a communication from a door sensor of the door security device, the door sensor mounted proximate to the door and configured to detect open and closed positions of the door, the communication indicative of detecting the open position of the door; and 
 in response to determining that the at least a part of the security system is in the armed state, and that the motion within the perimeter is detected at substantially the same time as the open position of the door is detected, performing at least one of:
 determining not to send to the system control panel a door open signal; or 
 sending a system control panel signal to the system control panel, the system control panel signal indicative to the system control panel to modify configuration such that an indication of door open in at least a part of the security system does not trigger an alarm. 
 
 
     
     
       13. The method of  claim 12 , wherein determining not to send to the system control panel a door open signal comprises ignoring the communication from the door sensor indicative of detecting the open position of the door was received. 
     
     
       14. The method of  claim 12 , wherein determining not to send to the system control panel a door open signal comprises disabling the door sensor. 
     
     
       15. The method of  claim 12 , wherein the signal from the system control panel is received wirelessly. 
     
     
       16. The method of  claim 1 , wherein the signal received from the system control panel is indicative of an armed stay mode, the signal indicative to the door security device to monitor entry into the perimeter and not to generate an alarm in response to an exit from the perimeter. 
     
     
       17. The method of  claim 16 , further comprising:
 receiving a communication from a portable device; and 
 determining, based on the communication from the portable device, whether to send a disarm message to the system control panel. 
 
     
     
       18. The method of  claim 17 , wherein the communication from the portable device comprises a device packet; and
 wherein determining whether to send the disarm message to the system control panel comprises:
 comparing an ID in the device packet with a list of approved IDs to determine whether the portable device is preauthorized; and 
 in response to determining that the portable device is preauthorized, sending the disarm message to the system control panel. 
 
 
     
     
       19. The method of  claim 17 , wherein the communication comprises a device ID and a system ID; and
 wherein the controller is configured to determine whether to send the disarm message to the system control panel by:
 comparing the device ID with a list of approved IDs to determine whether the portable device is preauthorized; 
 comparing the system ID to determine whether the system ID is indicative of the security system; and 
 in response to determining that the portable device is preauthorized and that the system ID is indicative of the security system, sending the disarm message to the system control panel.